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Step 1:Buy a phone or SIM.Buy a new device (or SIM card, if you are bringing your own device). When you receive your order, slip the SIM card into your device.Shop phonesShop SIM cards

Step 2:Add service or pick a different plan.Your device comes activated with our starter Pay As You Go plan with 30 minutes of talk or 30 texts (or any combination of the two that adds up to 30).* To keep this plan, just add service to this account. Or, you can compare prepaid plans and call 1-877-464-8646 if you want to switch.Add serviceCompare prepaid plans

Limited-time offers; subject to change. Taxes and fees additional. Unlimited talk & text features for direct US communications between 2 people; others (e.g. conference & chat lines, etc.) may cost extra. Pay-In-Advance & Simply Prepaid Monthly Services:Features available until 30th day; if sufficient balance, services automatically renew at expiration. If balance is insufficient to renew for 120 days, account will be suspended for 30 days. If you have a balance, your plan will convert to Pay As You Go for 30-day increments with $3/mo. for 30 voice min./SMS messages. After your balance is depleted, your account is suspended.Pay As You Go:Service available for 30 days after activation/refill/conversion; then account is suspended. If you have a balance, your plan will resume for 30 days with 30 voice min. or SMS messages. After this 30-day period, your account is suspended. If funds available, additional minutes/messages @ $0.10/minute or message.Service Changes or Renewals:When you switch between plan options or renew a monthly plan, features or credits associated with your prior plan option will no longer be available, and you are not able to switch back to some plan options. Some plan options will not allow early renewal.General Terms:$20 SIM starter kit may be required. Sufficient balance required to use service. Domestic use only; additional charges apply for international use where available. Calls rated on a per-minute basis. Partial minutes/megabytes rounded up. Some plan options include specified data speeds. Where indicated, full speeds available up to data allotment, including tethering (Unlimited on-smartphone 4G LTE data option includes 14GB of tethering); then slowed to up to 2G speeds for balance of service period. Certain uses, e.g., some speed test apps, may count against high-speed data allotment or have speeds reduced after allotment reached. Data roaming only available for monthly plans of $40/mo. or higher. U.S. Roaming and on-network data allotments differ: Most full speed plans include 200 MB roaming. Check your plan for details. Some plan options do not permit use of features after included amounts are depleted. If you transfer your number to another carrier, account will be deactivated and no service will be available.BYOD: Check your warranty and contract with your carrier to see what conditions apply to unlocking your device. Smartphone Equality: Min. 12 mo. on-time or consecutive payments, financed device, and qualifying plan required.Network Management: Service may be slowed, suspended, terminated, or restricted for misuse, abnormal use, interference with our network or ability to provide quality service to other users, or significant roaming. Customers who use more than 28GB of data in a bill cycle will have their data usage de-prioritized compared to other customers for that bill cycle at locations and times when competing network demands occur, resulting in relatively slower speeds. See t-mobile.com/OpenInternet for details. LTE is a trademark of ETSI.